Finding the Fourth Proportional to 307.88, 461.81 and 170.99
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Solution
The fourth proportional to 307.88, 461.81 and 170.99 is: 256.48
Step by Step Solution
- Step 1: Write the proportion equation
307.88 : 461.81 = 170.99 : x - Step 2: Convert to fraction form
307.88/461.81 = 170.99/x - Step 3: Cross multiply
307.88x = 461.81 × 170.99 - Step 4: Simplify right side
307.88x = 78,963.01 - Step 5: Solve for x
x = 78,963.01/307.88 - Step 6: Final answer
x = 256.48
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.